Clock



F. HALSTRUP Aug.-26, 1930.

CLOCK Filed Oct. 19, 1926 3 Sheets-Shep; l

Muen-fon Aug. 2 6 1930. F. HALSTRUP CLOCK Filed Oct. 19, 1926 s Sheets-Sheet 2 Patented Aug. 26, 1930 UNITEDSTATES PATENT ()FFICE GERMANY FRANZ HALSTRUP, F FREIBURG, IM BRVEISG'AU, GERMANY, ASSIG'NOR T0 SCHWARZ- WALDER LAMPENUHRENFABRIK G. M. B.

H. eLoBUnA, 0F FREIBURG, IM BREISGAU,

CLOCK Application filed October 19, 1926, Serial No. 142,570, and in Germany April 26, 1928.

The present invention has reference to improvements in clocks and relates more specifically to an alarm clock in which the horary and minute dials are represented by clock work operated semi-spherical glass bowls which together form a hollow translucent globe to be automatically illumined from within upon the alarm unit coming into action. Means are provided for actuating or arresting the alarm mechanism or striking works and the lighting mechanism independently of one another or in timed coaction.

In order to make my invention readily understood I will describe the several novel and improved features in detail in connec tion with the accompanying drawings, in which Fig. 1 is a verticalmcdian section through the clock, the conventional clock and alarm works and the electric battery not being shown for the sake of clearness; Fig. 1 shows a fragmentary view, partly in section, of the minute tube in extended state; Fig. 2 is a plan view of the clock base with the works proper removed; Fig. 3 is a cross section on line 33 of Fig. 1; Fig. 4 is a section through an hour tube and alarm detail; Fig. 5 is a plan View of the works with the lighting unit in cut-in position; Fig 6 is a similar view with the parts in the normal, that is to say cut-out position; Fig. 7 is the same View, but with the releasing lever temporarily ield out of coaction with the ratchet wheel for preventing illumination during the striking of the alarm. Fig. 8 is a view of the works from below; Fig. 9 a crosssection on line 9-9 of Fig. 6; and Fig. 10 shows the horary and minute annuli and adjacent parts.

To the clock housing 2 is rigidly secured the single hand 3, from which extends inwardly the pointer 83 for setting the alarm unit. The upper portion 4 of the clock hand, which curves over the upper hemisphere 10, can readily be detached from the lower portion. for assembling or disassembling purposes. The hour tube 5 supports at its upper end the hour glass bowl 6 and surrounds the minute tube 7 from the upper end of which latter extend the bracket arms 8, which jointly support the minute annulus 9 of the inverted minute glass bowl 10.

On the upper bearing 11.2 *ig. 1) of the minute arbor 12 is mounted the double-armed switch lever 11, which can be oscillated sideways by means of the bell-crank 15 (Fig. 9), which latter is rockingly mounted on the shaft 13 of the pusn mitten 14.. For this pun pose the one end of the lever 11 laterally enlarged and the two end portions are turned up to form contact cheeks 16 and 17 re spectively (Figs. 5 and 9). From the other end of the lever 11 depends the insulated metal contact roller 18, designed to elem trically connect the two contact terminals 23 and 24 in the clock base (Fig. 1). A stud 30 upstanding from the lever 11 can coact respectively with the crimps 19 and 20 of the snap spring 21 (Figs. 5 and 6) for temporarily locking the lever 11 in its adjusted position.

On the switch lever 11 is fulcrumed the bell-crank releaser 25, 26 which is influenced by the spring 27 in such manner that its one extremity 26 is always pressed against the eccentric 28. Its other, free, end cooperates in. the cut-out position (Fig. 6) with the ratchet wheel 34- fast on the alarm wind ing stem 22. On the operation of the alarm the lever 11 is moved over into the position shown in F ig 5, in which the conta roller 18 electrically connects the two contact springs 23 and 24 for switchingdn the light 46 within the globe.

The lever 25, 26 is mounted on. the switch lever 11 by means of slot movement 29 to insure proper operative engagement of the lever end 25 in the ratchet wheel 34 at all relative positions of the latter.

In the upper plate 1 is provided a cut-out 31 (Figs. to 7) for allowing the spring influcnced angle lever 32 to freely pass therethrough for the purpose of lockino the alarm anchor 62 by meair of the bent a. i ester extending from t rock shaft 33 (Fig. 9). If the lever 32 i. moved in the direction of the arrows (Fig. 9), the alarm can sound. At the same time the arm 35 also serves for automatically arresting the alarm action, for after the alarm spring has expanded to a certain The shatt 13 ot' the push button 1% carries at its lower end L laterally extending pin 36 wlzi *h. upon the button heme; rotated in the tlii'ectionoit the arrow (Fig. contacts with the hell crank 37 antl causes the latter to en- :Iaee in the teeth of the al irra wheel 88 autl ihereh he alarm action. On wiuclingg up the al: rin spring; the alarm wheel 38 moves hachwar'l to a small extent which allows the lever 37. urged by the spring 39. to more. hack again into the (lottetl line iosition 37. releasing thereby the wheel 38.

ll) denotes the alarm setting annulus l. l antl 10) in which is mounted internally the small ripe l2 pr 95 a notch il (Fig. l Upon thi; riir a pin 41 rigltll" extending t oii the hou tube 5 and (leto carrr the entire weight of the hour in -l-3 at the set time (lrops which movement trees the 10S; uiiper entl slicles on th so that the lever can re 'l: in

U1 le lever hour wheel el the arrow-indicated direction (Fig. 9 releasing tliereh -i the a n1 antl in turn the alai' action.

To the upper eiul of the spindle let? (it toe settins hnoh l? 1 is fixed the eccentric n the releaser lever 20. o.

28 w iich coae e 5 to '4. tor reel-ring it. it

as shown in Fi sirerl. out (it contact with the alarm ratchet wheel 34 so that en the l ght will not he switch e i (l The minute a to the minute to 's (l ,sig'uml tt more or the two eoiiipleinenta shafts within tilt lower earl at which is securetl the eoupliir s e re 61 whirh serves as secontl current cou- (luctor. .38 is '1 step hearing; ior supportingr the weight ot the minute arbor 12;. the minute tuhe T ant the minute glass 10.

The ope ion 0 the clescrihetl lnechauisr'iis as follows?- ln the normal pos't'ion of the parts (Fig. 6) in which the lig lr is oft. the arm (it the rel-es engages in the teeth of the ratchet wlu 1" new the alarm SOLUltlS at the time t. e e y will rock the switch tion of through the lerer arm when the S connects the two contact 4'. which automaticall cuts- PL liar.

luv t the s rine; a r 1' lever so :ct

tree lever an i W 1e; uoturne l le er if the l """i r ttet or a ls of Slit; i)?" all current. coutluetiug H I 1 H members in m minrie time t ore (lescrihetl.

annulus 4O an l provitletl state'l arranged below the hour 1e alarm is set on t -lJl 'th a egratluatetl hour l i wove. tlli annulus carr es t ch looselv r t ti o; the arrow 7) in the set time will (ll'mi' i to the "notch 1'3! when hr this axirl tl sgilar'eu'zei the tube a in the lireetion at the arr the angle lever will he i r in 9. since it I' ".1(l with its one extremity into the tleirh a oi the wheel l test on the hour tuhe which trees the arm alarm erhor allowing: the alarm to tunetien.

53, ot the 1 Mn it oulv necessarr to turn t; .veen l t. when its lower lateral 'll so act on the hell 3'? hat it eziigl'a yes in the alarm wheel Fig. 8).

crault 35% to loch the latter On return of the push spring: l!) urges the wheel 38.

":er array tron: the

By means of the lescr h tl niechanis will he seen on setti; -oii at the alarm simultaneously the light witched-(iii. so that the user (loes not have to search aroun-il c tlarlt for the. li ht switeli. he can also. i. ttlllpfil't 'il tl sconueet the li ,;'htin; unit troin the alarm l'illlt.

conducting parts are mounted on the he ole-cl: wor

F int-e all eurg'uo ger can readily he {01? repairing purnoses without recasing t i quiring the watchmaker to disconnect or remove any electrical part or parts.

Dry battery or house current may be used for lighting the clock.

What I claim is 1. In a switch mechanism, a switch lever movable to positions for opening and closing a circuit, means including anelement mounted on the lever and operable when in a predetermined working position for shifting said lever from circuit opening to circuit closing position, a member movable to shift said element out of such predetermined position, and means independent of the first-named means for shifting the lever to circuit opening and closing positions.

2. In a switch mechanism, a circuit opening and closing switch lever, an actuating lever fulcrumed on the switch lever, means for operating the same for imparting circuit closing movement to the switch lever, a lockin member for locking said means from action, and means for releasing said locking member.

3. In a switch mechanism, a two-armed switch lever movable to positions for opening and closing a circuit, a two-armed actuating lever pivotallv mounted on one of the arms of the switch lever, operating means connected with the other arm of the switch lever, operating means acting on one of the arms of the actuating lever for shifting the switch lever to one position, and means acting on the other arm of said actuating lever to shift the first named arm of said lever to a position in which. it is rendered inoperable by the second-named operating means.

4. In a switch mechanism. a two-armed switch lever movable to positions for openinn: and closing a circuit, a spring-controlled hell crank actuating lever pivotally mounted on one of the arms of the switch lever, o erating means connected with the other arm of the switch lever, operating means acting on one of the arms of the actuating lever for shifting the switch lever to one position, and means acting on the other arm of said actuating lever to shift the first-named arm of said lever to a position in which it is rendered inoperable by the second-named opcrating means.

5. In a switch mechanism, a. switch lever movable to positions for opening and closing a circuit, an actuating lever pivotally mounted on said switch lever, operative means directly acting on the switch lever for shifting it to either circuit opening or circuit closing positions, operative means acting on the actuating lever when said actuating lever is in a predetermined position for shifting the switch lever to one of said positions, locking means for holding the secondnamed operative means inoperative, means operable by the first-named operative means without affecting the switch lever for releas- 

